French universal joint for oil pipe
By using a stabilizing device and a mechanical locking structure that allows the guide groove and limit strip to slide together, the problem of loosening of the universal connector in vibration and fluid environments is solved, achieving a connection effect with high reliability and low maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-03-24
AI Technical Summary
Existing universal connectors are prone to loosening during use due to material flow and vibration, leading to instability and potential leakage problems.
The device employs a stabilizing mechanism that uses a guide groove and a limit bar in sliding engagement, combined with a mechanical locking structure consisting of a baffle and a threaded rod, along with a limit ring and a detachable locking block design, to achieve dynamic locking and convenient maintenance.
It significantly improves the stability and reliability of the connection, reduces the failure rate and maintenance costs, and adapts to the high-frequency assembly needs under various working conditions.
Smart Images
Figure CN224033284U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a universal joint technical field especially relates to a kind of oil pipe with French universal joint. BACKGROUND
[0002] Oil pipe with French universal joint, also known as French joint or universal joint, is a mechanical component that can transmit torque between two shafts at different angles. It plays an indispensable role in mechanical engineering due to its flexibility and reliability. French joints are widely used in various fields, including the automotive industry, where they connect drive shafts and wheel shafts to accommodate the up-and-down movement of wheels during driving and the angle changes during steering. They are also used in engineering machinery, such as excavators and loaders, to connect different components and ensure effective power transmission in various working positions. In the aerospace industry, French joints are critical due to the need to handle complex mechanical movements and extreme working environments.
[0003] When workers need to connect pipes, they connect the pipes to the universal joint to connect two universal joints. However, the existing universal joint will vibrate due to the influence of material flow during use, causing the connection of the joint to loosen, which may lead to instability during use. SUMMARY
[0004] The utility model aims at solving the problem of instability of the existing universal joint during use and proposes an oil pipe with French universal joint.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an oil pipe with French universal joint, comprising a first connector, a second connector is placed on one side of the first connector, a limiting ring is installed on the outer surface of the first connector and the second connector, a stabilizing device is arranged on both sides of the second connector, the stabilizing device comprises a guide slot, the guide slot is opened on the outer surface of the second connector, a limiting strip is slidably connected inside the guide slot, a baffle is placed on the outer surface of the second connector, the baffle is fixedly connected with both ends of the limiting strip, a connecting plate is fixedly connected on one side of the baffle, the connecting plate is placed on the upper surface of the second connector, a threaded rod is inserted and connected in the connecting plate, a threaded hole is opened on the upper surface of the second connector, the threaded rod is screwedly connected with the threaded hole, a receiving groove is opened on the upper surface of the second connector, the receiving groove is located below the connecting plate, and the receiving groove can cooperate with the second connector to achieve the purpose of receiving the push spring.
[0006] Preferably, the connecting plate is fixedly connected with a push spring between the receiving groove, the push spring is located on one side of the threaded hole, and the push spring can be matched with the connecting plate and the receiving groove to facilitate workers to disassemble the universal joint.
[0007] Preferably, the outer surface of the limiting ring is provided with a dismounting device, the dismounting device comprises a clamping block, the clamping block is placed on the outer surface of the limiting ring, the baffle is sleeved on both sides of the clamping block, the second connector is sleeved on the inclined surface of the clamping block, the lower surface of the clamping block is provided with a sleeve opening, the clamping block can be matched with the limiting ring to achieve the purpose of tightening the first connector and the second connector, and one side of the clamping block is in an inclined state.
[0008] Preferably, the outer surface of the limiting ring is fixedly connected with a second anti-skid block, one of the sleeve openings is sleeved on the surface of the second anti-skid block, the outer surface of the limiting ring is fixedly connected with a first anti-skid block, and the other sleeve opening is sleeved on the surface of the first anti-skid block, and the second anti-skid block can be matched with the limiting ring and the first anti-skid block to achieve the purpose of supporting the first anti-skid block and the second anti-skid block.
[0009] Preferably, a limiting hole is formed in one side of the clamping block, a limiting rod is screw-connected in the limiting hole, and the limiting rod is inserted into the first anti-skid block, so that the limiting hole can be matched with the clamping block to guide the limiting rod.
[0010] Compared with the prior art, the utility model has the advantages and positive effects that:
[0011] Firstly, the stable device arranged on both sides of the second connector introduces the structural mechanism that the guide groove is slidably matched with the limiting strip, so that accurate guidance and positioning can be realized according to the connection state in the use process. When the baffle drives the limiting strip to slide along the guide groove to the specified position under external operation, the connecting structure realizes active locking, and the stability of connection is significantly improved. The structure avoids the problems that the traditional universal joint leaks or separates due to loose connection in fluid transmission or vibration environment, and realizes high reliability of the connecting piece under dynamic working conditions.
[0012] Further, the baffle is matched with the internal threaded rod through the integrally connected connecting plate, mechanical tightening and continuous pressing can be realized, the traditional elastic clamping mode is avoided, the tightness performance recession caused by material aging, deformation and the like is overcome, and therefore the service life of the connector is significantly prolonged and the failure rate is reduced.
[0013] In addition, the utility model discloses the upper surface of second connector is equipped with the storage groove structure, this structure not only embeds the push spring reasonably, still make the connecting plate can keep initial position under the non - working state, and the consistency of quick reset and repeated operation is realized through the elastic force cooperation. The mechanism makes the user obtain consistent operation feeling and structural stability in the assembly and disassembly of multiple times, and this is particularly important in the scene of high frequency assembly in the field.
[0014] Further, through the detachable clamping block structure arranged outside the limiting ring, cooperating with the plug-in locking mode of the limiting rod and the anti-skid block, the common maintenance and replacement problem of the connector is solved. In the traditional structure, the clamping block needs to be replaced as a whole after wearing, and the maintenance cost is high and the downtime is long. In the present application, the clamping block structure can be quickly removed without disassembling the entire connector, and the replacement operation is simple, which greatly improves the maintenance efficiency and reduces the maintenance cost.
[0015] Furthermore, one side of the clamping block is designed as an inclined surface, and a double-sided supporting and positioning structure is formed by the first anti-skid block and the second anti-skid block, which enhances the anti-slip ability of the connection. Especially in the oil pipe operation, oil stains, wet and slippery, high pressure working conditions, high strength shear resistance, high friction stable connection can still be realized, effectively solving the technical problem of failure due to slipping in traditional connection mode under harsh working conditions.
[0016] In summary, the utility model makes innovation design from multiple aspects such as structure cooperation, material motion restriction and dynamic locking around the three core problems of "connection stability", "convenient maintenance" and "consistent operation", realizes the unexpected composite effect in the current technical field through the synergistic effect of each functional unit, constitutes a series of, systematic, unexpected technical progress, and provides a new type of solution with high performance and low maintenance for the oil pipe mechanical connection system. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 A three-dimensional structure schematic diagram of the utility model is provided for a French universal joint for oil pipes;
[0018] Figure 2 A stable device structure schematic diagram of the utility model is provided for a French universal joint for oil pipes;
[0019] Figure 3 A French universal joint for oil pipes is provided for the utility model Figure 2 An enlarged structure schematic diagram of position A is provided for the utility model;
[0020] Figure 4 A dismounting device structure schematic diagram of the utility model is provided for a French universal joint for oil pipes;
[0021] Figure 5 A French universal joint for oil pipes is provided for the utility model Figure 4Enlarged structural schematic view at B.
[0022] Legend:
[0023] 1, the first connecting head; 2, the second connecting head; 3, the stabilizing device; 31, the guide slot; 32, the storage slot; 33, the threaded hole; 34, the push spring; 35, the connecting plate; 36, the limiting strip; 37, the baffle; 38, the threaded rod; 4, the dismounting device; 41, the clamping block; 42, the sleeve opening; 43, the limiting hole; 44, the limiting rod; 45, the first anti-skid block; 46, the second anti-skid block; 5, the limiting ring. DETAILED DESCRIPTION
[0024] Please refer to Figures 1-5 The utility model provides a technical scheme: a French universal joint for oil pipe, including first connecting head 1, the one side of first connecting head 1 places second connecting head 2, the outer surface of first connecting head 1 and second connecting head 2 installs limiting ring 5, and the both sides of second joint are provided with stabilizing device 3.
[0025] The specific setting and function of the stabilizing device 3 and the dismounting device 4 will be described below.
[0026] In the embodiment: stabilizing device 3 includes guide slot 31, and the guide slot 31 is opened on the outer surface of second joint, and the inside of guide slot 31 is slidably connected with limiting strip 36, and the outer surface of second joint is placed with baffle 37, and the both ends of baffle 37 are fixedly connected with limiting strip 36, and the side of baffle 37 is fixedly connected with connecting plate 35, and connecting plate 35 is placed on the upper surface of second joint, and the inside of connecting plate 35 is inserted with threaded rod 38, and the upper surface of second joint is provided with threaded hole 33, and threaded rod 38 is screwedly connected with the inside of threaded hole 33.
[0027] Specifically, the upper surface of second joint is provided with storage slot 32, and storage slot 32 is located below connecting plate 35, and storage slot 32 can be matched with second joint to achieve the purpose of storing push spring 34.
[0028] Specifically, push spring 34 is fixedly connected between connecting plate 35 and storage slot 32, and push spring 34 is located on the side of threaded hole 33.
[0029] In the embodiment: push spring 34 can be matched with connecting plate 35 and storage slot 32 to achieve the purpose of facilitating workers to dismount the universal joint.
[0030] In the embodiment, the outer surface of the limiting ring 5 is provided with the dismounting device 4, the dismounting device 4 comprises a clamping block 41, the clamping block 41 is placed on the outer surface of the limiting ring 5, the baffle 37 is sleeved on both sides of the clamping block 41, the second joint is sleeved on the inclined surface of the clamping block 41, the lower surface of the clamping block 41 is provided with a sleeve opening 42, the clamping block 41 can be matched with the limiting ring 5 to tighten the first joint and the second joint, and one side of the clamping block 41 is in an inclined state.
[0031] Specifically, the outer surface of the limiting ring 5 is fixedly connected with a second anti-skid block 46, one sleeve opening 42 is sleeved on the surface of the second anti-skid block 46, the outer surface of the limiting ring 5 is fixedly connected with a first anti-skid block 45, and the other sleeve opening 42 is sleeved on the surface of the first anti-skid block 45.
[0032] In the embodiment, the second anti-skid block 46 can be matched with the limiting ring 5 and the first anti-skid block 45 to support the first anti-skid block 45 and the second anti-skid block 46.
[0033] Specifically, one side of the clamping block 41 is provided with a limiting hole 43, the limiting hole 43 is screw-connected with a limiting rod 44 inside, and the limiting rod 44 is inserted into the first anti-skid block 45.
[0034] In the embodiment, the limiting hole 43 can be matched with the clamping block 41 to guide the limiting rod 44.
[0035] Working principle: by arranging the stabilizing device 3, when the worker needs to stabilize the universal joint, the worker connects two universal joints, presses the connecting plate 35, the connecting plate 35 pushes the baffle 37, the baffle 37 drives the limiting strip 36, the limiting strip 36 is guided by the guide groove 31, when the baffle 37 slides to the specified position, the baffle 37 abuts against both sides of the clamping block 41, the worker inserts the threaded rod 38 into the threaded hole 33 and rotates, the threaded rod 38 is screw-connected with the threaded hole 33, the threaded rod 38 tightens and abuts against the connecting plate 35, by arranging the stabilizing device 3, the universal joint can be effectively stabilized for use, the loosening of the connection of the universal joint is avoided, and thus the stability of the universal joint during use is improved, in addition, by arranging the dismounting device 4, when the worker needs to dismount the severely worn clamping block 41, the limiting rod 44 is rotated, the limiting rod 44 is retracted and separated from the first anti-skid block 45, the worker takes down the clamping block 41 from the first anti-skid block 45 and the second anti-skid block 46, by arranging the dismounting device 4, the worker can effectively and conveniently replace the severely worn clamping block 41, the worker does not need to replace the entire universal joint due to the wear of the clamping block 41, and thus the maintenance cost of the universal joint is reduced.
Claims
1. A French universal connector for oil pipes, comprising a first connector (1), a second connector (2) placed on one side of the first connector (1), and limit rings (5) installed on the outer surfaces of the first connector (1) and the second connector (2), characterized in that: The second connector is provided with stabilizing devices (3) on both sides. The stabilizing devices (3) include guide grooves (31) which are opened on the outer surface of the second connector. A limit strip (36) is slidably connected inside the guide groove (31). A baffle (37) is placed on the outer surface of the second connector. The baffle (37) is fixedly connected to both ends of the limit strip (36). A connecting plate (35) is fixedly connected to one side of the baffle (37). The connecting plate (35) is placed on the upper surface of the second connector. A threaded rod (38) is inserted and connected inside the connecting plate (35). A threaded hole (33) is opened on the upper surface of the second connector. The threaded rod (38) is threadedly connected to the inside of the threaded hole (33).
2. The French universal connector for oil pipes according to claim 1, characterized in that: The upper surface of the second connector is provided with a storage groove (32), which is located below the connecting plate (35).
3. A French-style universal connector for oil pipes according to claim 2, characterized in that: A push spring (34) is fixedly connected between the connecting plate (35) and the storage groove (32), and the push spring (34) is located on one side of the threaded hole (33).
4. A French-style universal connector for oil pipes according to claim 1, characterized in that: The outer surface of the limiting ring (5) is provided with a disassembly device (4). The disassembly device (4) includes a locking block (41). The locking block (41) is placed on the outer surface of the limiting ring (5). The baffle (37) is sleeved on both sides of the locking block (41). The second connector is sleeved on the inclined surface of the locking block (41). The lower surface of the locking block (41) is provided with a sleeve opening (42).
5. A French-style universal connector for oil pipes according to claim 4, characterized in that: The outer surface of the limiting ring (5) is fixedly connected to a second anti-slip block (46), one of the sleeves (42) is fitted onto the surface of the second anti-slip block (46), the outer surface of the limiting ring (5) is fixedly connected to a first anti-slip block (45), and the other sleeve (42) is fitted onto the surface of the first anti-slip block (45).
6. A French-style universal connector for oil pipes according to claim 4, characterized in that: A limiting hole (43) is provided on one side of the card block (41), and a limiting rod (44) is threadedly connected inside the limiting hole (43). The limiting rod (44) is inserted into the inside of the first anti-slip block (45).